aabb: center of AABB helper

* it is just wrapper of vec_center but it saves to access min and max values of AABB

include/cglm/box.h

@@ -200,4 +200,16 @@ glm_aabb_radius(vec3 box[2]) {
   return glm_aabb_size(box) * 0.5f;
 }
 
+/*!
+ * @brief computes center point of AABB
+ *
+ * @param[in]   box  bounding box
+ * @param[out]  dest center of bounding box
+ */
+CGLM_INLINE
+void
+glm_aabb_center(vec3 box[2], vec3 dest) {
+  glm_vec_center(box[0], box[1], dest);
+}
+
 #endif /* cglm_box_h */

include/cglm/call/box.h

@@ -51,6 +51,11 @@ glmc_aabb_size(vec3 box[2]);
 CGLM_EXPORT
 float
 glmc_aabb_radius(vec3 box[2]);
+
+CGLM_EXPORT
+void
+glmc_aabb_center(vec3 box[2], vec3 dest);
+
 #ifdef __cplusplus
 }
 #endif

src/box.c

@@ -64,3 +64,9 @@ float
 glmc_aabb_radius(vec3 box[2]) {
   return glm_aabb_radius(box);
 }
+
+CGLM_EXPORT
+void
+glmc_aabb_center(vec3 box[2], vec3 dest) {
+  glm_aabb_center(box, dest);
+}